package A01_Map;
import java.util.HashMap;
import java.util.Map;

public class demo1 {
    public static void main(String[] args) {



        Map<String,String> m = new HashMap<>();
        m.put("郭靖","黄蓉");
        m.put("小河","小李");
        m.put("小哈","小黄");
//        System.out.println(m);
//    String result = m.remove("郭靖");
//        System.out.println(result);
//m.clear();
////        System.out.println(m);
        boolean KeyResult =m.containsKey("郭靖2");
        System.out.println(KeyResult);
        System.out.println(m);
    }



}
